Excitation of transverse magnetic tube waves in stellar convection
... excitation of these waves takes place in the upper layers of stellar convection zones, where the existing turbulent motions are the most vigorous. The waves leave the region of generation as freely propagating and purely transverse waves that are not coupled to longitudinal tube waves. In Paper I, w ...
... excitation of these waves takes place in the upper layers of stellar convection zones, where the existing turbulent motions are the most vigorous. The waves leave the region of generation as freely propagating and purely transverse waves that are not coupled to longitudinal tube waves. In Paper I, w ...
Web Course - Latest
... energy of light at different wavelengths. This information can be obtained if light from a hot object (such as a filament of an incandescent light bulb or back body) passes through a diffraction grating and is focused on a screen. With your eyes you can see a rainbow (spectrum) in which all colors a ...
... energy of light at different wavelengths. This information can be obtained if light from a hot object (such as a filament of an incandescent light bulb or back body) passes through a diffraction grating and is focused on a screen. With your eyes you can see a rainbow (spectrum) in which all colors a ...
3D GR Hydrodynamic Simulations of Binary Neutron Star
... Shock front moving from fine to coarse grid ...
... Shock front moving from fine to coarse grid ...
99st_q
... Sketch the traces displayed on the CRO when the frequency of the signal generator is 1 kHz and explain why the bulb Z is dim. (Hint: The sum of currents in X and Y is equal to the current through Z.) (3 marks) 9. In 1989, the spacecraft ‘Voyager 2’ was sent from earth to the Neptunian system. Before ...
... Sketch the traces displayed on the CRO when the frequency of the signal generator is 1 kHz and explain why the bulb Z is dim. (Hint: The sum of currents in X and Y is equal to the current through Z.) (3 marks) 9. In 1989, the spacecraft ‘Voyager 2’ was sent from earth to the Neptunian system. Before ...
Magnetars origin and progenitors with enhanced rotation'
... Magnetars origin and progenitors with enhanced rotation S.B. Popov, M.E. Prokhorov (Sternberg Astronomical Institute) ...
... Magnetars origin and progenitors with enhanced rotation S.B. Popov, M.E. Prokhorov (Sternberg Astronomical Institute) ...
Chapter 3: Electromagnetic Waves
... Transferring Energy A wave transfers energy from one place to another without transferring matter. How do waves transfer energy? Waves, such as water waves and sound waves, transfer energy by making particles of matter move. The energy is passed along from particle to particle as they collide with t ...
... Transferring Energy A wave transfers energy from one place to another without transferring matter. How do waves transfer energy? Waves, such as water waves and sound waves, transfer energy by making particles of matter move. The energy is passed along from particle to particle as they collide with t ...
Cosmic Hide and Seek: the Search for the Missing Mass
... tiny non-baryonic particles that are different from what we call "ordinary" matter. Smaller than atoms, Weakly Interactive Massive Particles are thought to have mass, but usually interact with baryonic matter gravitationally--they pass right through ordinary matter. Since each WIMP has only a small ...
... tiny non-baryonic particles that are different from what we call "ordinary" matter. Smaller than atoms, Weakly Interactive Massive Particles are thought to have mass, but usually interact with baryonic matter gravitationally--they pass right through ordinary matter. Since each WIMP has only a small ...
Preliminary Physics Syllabus Notes 2007
... as the use of written codes developed, through increasingly sophisticated graphic symbols. The use of a hard copy medium to transfer information in coded form meant that communication was able to cross greater distances with improved accuracy of information transfer. A messenger was required to carr ...
... as the use of written codes developed, through increasingly sophisticated graphic symbols. The use of a hard copy medium to transfer information in coded form meant that communication was able to cross greater distances with improved accuracy of information transfer. A messenger was required to carr ...
Surface excitation of hypersound in piezoelectric crystals by
... of rods were used plunging only with one end into the concentrated dielectric field of the re-entrant cavity (Fig. 1). The excited sound pulses propagate down the rod and can be detected in a similar re-entrant cavity arranged at the other end of the quartz rod, or it can be detected after reflectio ...
... of rods were used plunging only with one end into the concentrated dielectric field of the re-entrant cavity (Fig. 1). The excited sound pulses propagate down the rod and can be detected in a similar re-entrant cavity arranged at the other end of the quartz rod, or it can be detected after reflectio ...
The Rainbows of Gravity
... below r = 2m, a black hole region of no escape develops in the space-time, bounded by the event horizon at r = 2m. Any point in this empty region represents a trapped surface (which is a two-sphere in space-time) in that both the outgoing and ingoing families of null geodesics emitted from this poin ...
... below r = 2m, a black hole region of no escape develops in the space-time, bounded by the event horizon at r = 2m. Any point in this empty region represents a trapped surface (which is a two-sphere in space-time) in that both the outgoing and ingoing families of null geodesics emitted from this poin ...
Electromagnetic Wave Propagating in Gyroelectric Slab in the
... medium. The characteristics of electromagnetic waves propagation in gyrotropic plasmas have been theoretically investigated for years. Kushwaha and Halevi have been studied the magnetoplasma modes in Voigt, perpendicular, and Faraday configurations [1–3], Gillies and Hlawiczka have done some researc ...
... medium. The characteristics of electromagnetic waves propagation in gyrotropic plasmas have been theoretically investigated for years. Kushwaha and Halevi have been studied the magnetoplasma modes in Voigt, perpendicular, and Faraday configurations [1–3], Gillies and Hlawiczka have done some researc ...
The Rainbows of Gravity
... been generally agreed upon as the criterion for the existence of a singularity for a spacetime. It is clear that if a spacetime manifold contains incomplete non-spacelike geodesics, there is a definite singular behaviour present in the spacetime. In such a case, a timelike observer or a photon sudde ...
... been generally agreed upon as the criterion for the existence of a singularity for a spacetime. It is clear that if a spacetime manifold contains incomplete non-spacelike geodesics, there is a definite singular behaviour present in the spacetime. In such a case, a timelike observer or a photon sudde ...
Early electromagnetic waves from earthquake rupturing: I
... The first kind of seismoelectric conversion produces a local accompanying EM field restricted to the disturbance region of the seismic wave. It seems to be a reasonable explanation for the observed EM fields synchronized with the seismic waves (Nagao et al. 2000; Karakelian et al. 2002; Tang et al. ...
... The first kind of seismoelectric conversion produces a local accompanying EM field restricted to the disturbance region of the seismic wave. It seems to be a reasonable explanation for the observed EM fields synchronized with the seismic waves (Nagao et al. 2000; Karakelian et al. 2002; Tang et al. ...
arXiv:1502.04693v1 [gr
... et al. 2014a). Three objects, WD 0806−661(Luhman et al. 2011), CFBDSIR J1458+1013B (Liu et al. 2011), and WISE 0855−0714 (Luhman 2014), likely have effective temperatures similar to (or less than) the above Y dwarfs, but have yet to be spectroscopically confirmed. Ground-based follow-up observations ...
... et al. 2014a). Three objects, WD 0806−661(Luhman et al. 2011), CFBDSIR J1458+1013B (Liu et al. 2011), and WISE 0855−0714 (Luhman 2014), likely have effective temperatures similar to (or less than) the above Y dwarfs, but have yet to be spectroscopically confirmed. Ground-based follow-up observations ...
Roche accretion of stars close to massive black holes
... based on polytropic stellar models, and showed that such mass transfer processes could be dynamically unstable. However, these studies are based on Newtonian calculations, since the companion star reaches the Roche limit far away from the ISCO of the stellarmass compact object due to their comparabl ...
... based on polytropic stellar models, and showed that such mass transfer processes could be dynamically unstable. However, these studies are based on Newtonian calculations, since the companion star reaches the Roche limit far away from the ISCO of the stellarmass compact object due to their comparabl ...
matter and dark energy Gravitational lensing: a unique probe of dark
... the query does not make a distinction between gravitational light bending, i.e. the action of gravity on a corpuscle, and more conventional optical phenomena. Although it was left to later workers to calculate the gravitational deflection caused by the Sun on starlight, Newton had already made simil ...
... the query does not make a distinction between gravitational light bending, i.e. the action of gravity on a corpuscle, and more conventional optical phenomena. Although it was left to later workers to calculate the gravitational deflection caused by the Sun on starlight, Newton had already made simil ...
Cygnus X-1 poster (Massive Star Workshop)
... We adopt the simplest formation scenario that can explain all the observations. • assume both stars, the BH progenitor and the O supergiant were born at the same time • assume there was no mass transfer at all in the history of Cygnus X-1. (This means we can model the O supergiant as a single isolat ...
... We adopt the simplest formation scenario that can explain all the observations. • assume both stars, the BH progenitor and the O supergiant were born at the same time • assume there was no mass transfer at all in the history of Cygnus X-1. (This means we can model the O supergiant as a single isolat ...
Document
... >1600 stars down to 19th magnitude, yielding a detection of variability in about 8% of the field stars. Have measured eclipsing binary periods down to tenths or hundredths of a second. Variation in orbital parameters gives information on perturbations in the system. Expect detections or stringent up ...
... >1600 stars down to 19th magnitude, yielding a detection of variability in about 8% of the field stars. Have measured eclipsing binary periods down to tenths or hundredths of a second. Variation in orbital parameters gives information on perturbations in the system. Expect detections or stringent up ...
Electric Fields and Potentials
... earth’s surface. You can imagine that every point in space near the earth has an associated gravitational field vector g, which is the gravitational acceleration that a test body placed at that point and released, would experience. If m is the mass of the body and F the gravitational force ("weight" ...
... earth’s surface. You can imagine that every point in space near the earth has an associated gravitational field vector g, which is the gravitational acceleration that a test body placed at that point and released, would experience. If m is the mass of the body and F the gravitational force ("weight" ...